Which aquatic creature belongs to the genus Hippocampus?

Which Czech composer wrote the 1924 opera "The Cunning Little Vixen", whose heroine is a female fox? Which Eugene O'Neill play, set in Harry Hope's saloon, debuted on Broadway in 1946? Apu, Krusty the Clown, Marge, Lisa and Maggie are characters on which animated TV series? Which word completes the titles of both Apuleius's "The ___ Ass" and Henry James's "The ___ Bowl"? Arab forces conquered which Syrian city in the 630s, and Arab troops entered it again in 1918? Which Arabic word meaning "son of" comes before "Saud" in the name of Saudi Arabia's founding king? Arabs call which Libyan capital "Tarabulus"? Which Likud prime minister signed a 1997 accord with Yasser Arafat on Israeli troop withdrawal from most of Hebron?